9-a=3

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Solution for 9-a=3 equation: 


Simplifying
9 + -1a = 3

Solving
9 + -1a = 3

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-9' to each side of the equation.
9 + -9 + -1a = 3 + -9

Combine like terms: 9 + -9 = 0
0 + -1a = 3 + -9
-1a = 3 + -9

Combine like terms: 3 + -9 = -6
-1a = -6

Divide each side by '-1'.
a = 6

Simplifying
a = 6

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